url encoded string can not be used in the path

[webpost]

I have this string as authentication token :

FtDF91VSX/7AN6C39k51​ZV510SW/ot6SIGstq8XG​ 
CcHfOfHbZOZLUD4u+GUN​K0bBawVZ4GR5TgV7PtRb​F+nm9abYJN6AWycdj9J6​ 
CLyU4D7Zou36KEjkel+0​LtlGGhFPVrCvpBuqPy8V​8o5IZ9tDys0Py6sXXAtE​ 
VbXBYeRYzOvIBzOZkIvi​IyceVCU+lYv/h9k7Fhlb​1JGtKUCj3ZDg/vJ1Co7d​ 
OC1Ho3/e0Fup7k9qgTuC​vZRSHcpizaEFPNLp

after I encode it, I still can not embed it in a url e.g. 
http://aabc.com/{token}/books/{bookid}, please let me know what is the problem ?

Thanks

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